5) The density of a 2.45 M aqueous solution of methanol (CH3OH) is 0.976 g/mL. What is the molality of the solution? The molar mass of methanol is 32.04 g. 6) Calculate the molality of a 35.4 percent (by mass) aqueous solution of phosphoric acid (H3PO4 ). The molar mass of phosphoric acid is 97.99 g 7) A solution containing 53 g of sodium carbonate (mol mass = 106) in 1 Kg water at 20°C. The density of the solution at this temperature is 1.1 g/ml. Determine for the solution. 1) the mole fraction of each component 1) the mass percent 2) the molarity 3) the molality 4) the normality

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.